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Finding the Fourth Proportional to 85,046.34, 117,361.54 and 49,236.94

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Solution

The fourth proportional to 85,046.34, 117,361.54 and 49,236.94 is: 67,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,046.34 : 117,361.54 = 49,236.94 : x
  2. Step 2: Convert to fraction form
    85,046.34/117,361.54 = 49,236.94/x
  3. Step 3: Cross multiply
    85,046.34x = 117,361.54 × 49,236.94
  4. Step 4: Simplify right side
    85,046.34x = 5,778,523,103.29
  5. Step 5: Solve for x
    x = 5,778,523,103.29/85,046.34
  6. Step 6: Final answer
    x = 67,945.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.